Onboard Skill for Claude

by vibeeval

Analyze brownfield codebase and create initial continuity ledger

517 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

521

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/vibeeval/vibecosystem --skill onboard

What it tells the agent to use

found in the instruction text

Task spawns other agents

The instruction itself

6 sections, as written by the author

Onboard - Project Discovery & Ledger Creation

Analyze a brownfield codebase and create an initial continuity ledger.

When to Use

First time working in an existing project
User says "onboard", "analyze this project", "get familiar with codebase"

How to Use

Spawn the onboard agent:

Use the Task tool with subagent_type: "onboard" and this prompt:

Onboard me to this project at $CLAUDE_PROJECT_DIR.

1. Create required directories if they don't exist:
   mkdir -p thoughts/shared/handoffs/<project-name> .claude

2. Explore the codebase using available tools:
   - Try: tldr tree . && tldr structure .
   - Fallback: find . -type f -name "*.py" -o -name "*.ts" -o -name "*.js" | head -50

3. Detect tech stack (look for package.json, requirements.txt, Cargo.toml, go.mod, etc.)

4. Ask the user about their goals using AskUserQuestion

5. Create a YAML handoff at thoughts/shared/handoffs/<project-name>/onboard-<date>.yaml:
   ---
   date: <ISO date>
   type: onboard
   status: active
   ---
   goal: <user's stated goal>
   now: Start working on <first priority>
   tech_stack: [list of detected technologies]
   key_files:
     - path: <important file>
       purpose: <what it does>
   architecture: <brief description>
   next:
     - <suggested first action>

Why an Agent?

The onboard process:

Requires multiple exploration steps
Should not pollute main context with codebase dumps
Returns a clean summary + creates the handoff

Output

Directories created: thoughts/shared/handoffs/<project>/, .claude/
YAML handoff created (loaded automatically on session start)
User has clear starting context
Ready to begin work with full project awareness

Notes

This skill is for BROWNFIELD projects (existing code)
For greenfield, use /create_plan instead
Handoff can be updated anytime with /create_handoff

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How to use it

Copy the folder

Take vibeeval/onboard from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.